BS 7211:1998 Electric cables-Thermosetting insulated, non-armoured cables for voltages up to and including 450/750V, for electric power, lighting and internal wiring and having low emission of smoke and corrosive gases when affected by fire.
BS 7211:1998 着火条件下，热固性绝缘电缆，电压在450V-750V及以下的非铠装电缆的低烟及低腐蚀性的要求。
多根成束燃烧测试 Flame propagation on multiple cables
根据BS EN 50266-2-4进行电缆多根成束垂直火焰燃烧测试。
the cable shall be tested in accordance with BS EN 50266-2-4,The test shall be carried out on a sample of comleted cable.
烟释放量测试 Smoke emission
根据BS EN 50268-2进行测试，烟密度测试（光透射率）应不小于60%。
According to BS EN 50268-2 to carry out smoke density testing, the minimum light transmittance shall be 60%.